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Enterprise Data Center Design and Methodology by Rob Snevely

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Creating RLU Definitions

An RLU is a way to categorize the set of criteria for a rack of equipment that must be met for it to function. As previously described, these are power, cooling, physical space, weight, bandwidth, and functional capacity.

The RLU tells you exactly what criteria needs to be meet for a rack of equipment to run. It doesn't matter what the empty space (places where machines do not live, aisles, pathways between aisles, door entries, etc.) has as criteria (it could be 90 degrees by the ramp). It also indicates where the physical attributes such as power outlets, cooling air, fibre connection terminations, etc., need to be located. They need to be located wherever the RLU will be located in the data center.

To determine the ...

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